<template>
  <div>
    <input type="text" v-model.trim="content">
    <input type="text" v-model='content'>
    <button @click="content='改变wrold值'">改变wrold值</button>
  </div>
</template>

<script>
  export default {
    data () {
      return {
        content: '  2222'
      }
    }
  }

</script>
